Improved heat-radiator



0.1;. FLETCHER.

Heat Radiator.

Patented May 2. 1865.

MPrrzaa PhnlbLilMgnpMr, Wuhingfon. n. c.

UNITED STATES PATENT OF ICE".

. DAR-[US c. FLETCHER, or RACINE, WISCONSIN.

IMPROVED HEAT-RADIATOR.

Specification forming part of Letters Patent No. 47,535, dated May 2, 1865. i

T 0 all whom it may concern:

Be it known that I, DARIUS G. FLETCHER, of Racine, in the county of Racine and State of Wisconsin, have invented a new and 1111- proved Heat-Radiator; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanyproved heat-radiator for stove-pipes, and is, an improvement on a similar radiator, for

which Letters Patent were granted to me, bearing date April 17, 1860.

The present invention consists in providing the bottom of the inner chamber of the radiator with a cast-metal base or foot, so formed as to admit of the dropping of soot and ashes from the radiator, so that the latter cannot become choked or clogged up by the former.

The invention also consists in an improve ment in the upper register of the inner chamber, whereby the device may be more economically constructed than hitherto.

A represents the external cylinder of my invention, constructed of sheet metal, with a collar, a, at each end to receive the joints of a stove-pipe, the cylinder A being considerably larger in diameter than the stove-pipe.

B represents a chamber, which is fitted within the cylinder A, the 10 wcr and principal portion of the former being of inverted conical form and perforated with lozenge or other shaped openings 1), as shown in Fig. 1. The lower end of the chamber B is fitted on a cast metal ring, 0, having arms (1, projectin g radially from it, the arms resting upon the lower part of the cylinder A, or, rather, upon the upper edge of its flaring or funnelshaped bottom 0, as shown clearly in FigI 1.

The upper part of the chamber .B is of cylindrical form, and it is perforated with rectangular openings 0, (shown clearly in Fig. 1,) and this cylindrical portion is encompassed by a band, D, having similar perforations, f,

The band D is allowed to turn made in it. freely on or around the upperpart of the chamber B, and it has a rod, 9, projecting from a bow, g, which is attached to it, said rod passing holizontally out through an oblong slot, h, in the cylinder 'A, by which the v band D may be turned. Thisperforated band D and the perforations in the upper part of the chamber Bform a register. The chamber B is considerably smaller in diameter than the cylinder A, and the upper end of the space between the chamber and cylinder is covered or closed by a cast-iron; ring, I],

(shown in Fig. 1.) Within the chamber B, at

the lower part of the cylindrical portion thereof, there is a register, F. (Shown in both fig- I ures.)

From the above description it will be seen that when the register F is open there will be a direct draft up through the chamber B, and l when said register is closed the products of combustion will pass up through the space between the chamber B and cylinder A, and H through the perforations b of the chamber B into said space, and through the perforations e f of the upper register into the upper part of B, and thence up the stove-pipe, the draft being controlled, as desired, by adjusting the band D. When the register F is closed, heat is radiated from the cylinder A. In consequence of having the chamber 3 supported within the cylinder A by means of the cast-, iron ring 0 and arms d, a free space is allowed for the descent of the soot and ashes, which would otherwise accumulate in the radiator part of the chamber B and band D of rectangular form, as shown, a saving is efl'ected in labor, and by having the upper end of the space between the chamberB and the cylinder A closed by a cast-iron ring, E, the radiator is rendered durableffar more so than when a sheet-metal ring or cover is used.

The cast-iron rings 0 and E preserve the apparatus from burning out and add much to is strength and durability.

I claim as new and desire to secure by Letters Patent 1. The east-iron ring'c and arms (1 for supporting the chamber B Within the case A, substantially as and for the purpose specified.

2. The rectangular openings 0 f of the upper A, as set forth. DARIUS G, FLETCHER.

Witnesses:

H. LYNCH, D. MCDONALD. 

